RE: [PATCH V2] Input: synaptics-rmi4 - Supports to query DPM value.

Derek Cheng
2024-08-06T00:56:51Z

Thanks Dmitry.

Regards,
Derek
Synaptics

-----Original Message-----
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Sent: Tuesday, August 6, 2024 1:32 AM
To: Marge Yang <Marge.Yang@tw.synaptics.com>
Cc: linux-input@vger.kernel.org; linux-kernel@vger.kernel.org; Vincent Huang <Vincent.huang@tw.synaptics.com>; David Chiu <David.Chiu@tw.synaptics.com>; Derek Cheng <derek.cheng@tw.synaptics.com>; Sam Tsai <Sam.Tsai@synaptics.com>
Subject: Re: [PATCH V2] Input: synaptics-rmi4 - Supports to query DPM value.

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On Mon, Aug 05, 2024 at 08:36:36AM +0000, Marge Yang wrote:
> Newer firmware allows to query touchpad resolution information by
> reading from resolution register.
> Presence of resolution register is signalled via bit
> 29 of the "register presence" register.
> On devices that lack this resolution register we fall back to using
> pitch and number of receivers data to calculate size of the sensor.
>
> RMI4 F12 will support to query DPM value on Touchpad.
> When TP firmware doesn't support to report logical and physical value
> within the Touchpad's HID report.
> We can directly query the DPM value through RMI.
>
> Signed-off-by: Marge Yang <marge.yang@tw.synaptics.com>
> Signed-off-by: Vincent Huang <Vincent.Huang@tw.synaptics.com>

Applied, thank you.

--
Dmitry